Implement Custom strcmp function

Code

#include <stdio.h>

int custom_strcmp(const char *a, const char *b) {
    // Your logic here
    int i=0;
    while ((*(a+i)!='\0') && (*(b+i) !='\0')){
        if (*(a+i)!=*(b+i)){
          return (unsigned char)*(a + i) - (unsigned char)*(b + i);
            
         } 

         i++;

}
    return (unsigned char)*(a+i) - (unsigned char)*(b+i);

}
int main() {
    char a[101], b[101];
    fgets(a, sizeof(a), stdin);
    fgets(b, sizeof(b), stdin);

    // Remove newline
    int i = 0;
    while (a[i]) {
        if (a[i] == '\n') { a[i] = '\0'; break; }
        i++;
    }
    i = 0;
    while (b[i]) {
        if (b[i] == '\n') { b[i] = '\0'; break; }
        i++;
    }

    printf("%d", custom_strcmp(a, b));
    return 0;
}

Solving Approach